function openBlock(num)
{
  closePreviouslyOpened()

  $('fg' + num).hide();
  $('ff' + num).style.display = "block";
  
  setBackgroud(num);

}

function closeBlock(num)
{
  $('ff' + num).hide();
  $('fg' + num).show();
}

function closePreviouslyOpened()
{
  for (i = 1; i < 8; i++)
  {
    closeBlock(i);
  }
}

function setBackgroud(num)
{
  switch(num)
  {
    case 1:
      $('logo_background').writeAttribute("src", "/images/handle_background.png");
      break;
    case 2:
      $('logo_background').writeAttribute("src", "/images/cilindri_background.png");
      break;
    case 3:
      $('logo_background').writeAttribute("src", "/images/dovodchiki_background.png");
      break;
    case 4:
      $('logo_background').writeAttribute("src", "/images/zamki_background.png");
      break;
    case 5:
      $('logo_background').writeAttribute("src", "/images/petli_background.png");
      break;    
    case 6:
      $('logo_background').writeAttribute("src", "/images/bacground_dovodchiki.png");
      break;  
    case 7:
      $('logo_background').writeAttribute("src", "/images/furnitura_background.png");
      break;
    default:
      $('logo_background').writeAttribute("src", "/images/logo_siba_background.png");
  }
}

function showAll(my_action)
{
  if ('open' == my_action)
  {
    $('show_all_block').update('скрыть продукцию');
    $('show_all_block').writeAttribute("href", "javascript:showAll('close')");
    
    for (i = 1; i < 8; i++)
    {
      //openBlock(i);
      $('fg' + i).hide();
      $('ff' + i).style.display = "block";
    }
    
  }
  else if ('close' == my_action)
  {
    $('show_all_block').update('показать всю продукцию');
    $('show_all_block').writeAttribute("href", "javascript:showAll('open')");
    
    closePreviouslyOpened();
    
  }

  setBackgroud(0); 
}

function openCatalog(my_action)
{
  if ('open' == my_action)
  {
    Effect.BlindDown('menu');
    
    $('open').update('закрыть каталог продукциии');
    $('handle').writeAttribute("href", "javascript:openCatalog('close')");
  }
  else if ('close' == my_action)
  {
    Effect.BlindUp('menu');
    
    $('open').update('открыть каталог продукции');
    $('handle').writeAttribute("href", "javascript:openCatalog('open')");
  }
}